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United States Patent |
5,039,518
|
Barone
,   et al.
|
August 13, 1991
|
Cosmetic sticks
Abstract
A cosmetic stick composition containing PVP/hexadecene copolymer, ester,
phenyl trimethicone, spherical silica, bismuth oxychloride, mica, and
cosmetic waxes.
Inventors:
|
Barone; Salvatore J. (Staten Island, NY);
Macchio; Ralph A. (Monsey, NY);
Russ; Julio G. (West Field, NJ)
|
Assignee:
|
Revlon, Inc. (New York, NY)
|
Appl. No.:
|
567044 |
Filed:
|
July 30, 1990 |
Current U.S. Class: |
424/63; 424/64; 424/69; 424/DIG.5 |
Intern'l Class: |
A01K 007/021 |
Field of Search: |
424/63,64,69,65,DIG. 5
|
References Cited
U.S. Patent Documents
4606914 | Aug., 1986 | Miyoshi | 424/63.
|
4648908 | Mar., 1987 | Takasuka | 424/69.
|
4659562 | Apr., 1987 | Arraudeau | 424/63.
|
4710375 | Dec., 1987 | Takasuka | 424/69.
|
4783333 | Nov., 1988 | Mercado | 424/63.
|
4795631 | Jan., 1989 | Sheehan | 424/64.
|
4810489 | Mar., 1989 | Murray et al. | 514/938.
|
4837011 | Jun., 1989 | Macchio | 424/69.
|
Foreign Patent Documents |
257908 | Nov., 1986 | JP.
| |
Primary Examiner: Page; Thurman K.
Assistant Examiner: Rucker; Susan S.
Attorney, Agent or Firm: Blackburn; Julie
Claims
We claim:
1. A composition containing a powder phase and an oil phase said powder
phase comprising 0.1-15% spherical silica, 0.1-45% bismuth oxychloride,
and 0.1-20% mica; and said oil phase comprising 0.30% cosmetic waxes and
0.1-30% ester, 0.1-20% phenyl trimethicone, and 0.1-10% PVP/hexadecene
copolymer in a 4:2:1 ratio respectively; wherein the percentage of powder
phase is 7-11% greater than the percentage oil phase in the final
composition.
2. The composition of claim 1 wherein the powder phase additionally
contains 0.1-15% fillers.
3. The composition of claim 2 wherein the powder phase additionally
contains 0.1-40% colors.
4. The composition of claim 2 containing 6-10% spherical silica, 14-18%
bismuth oxychloride, 5-10% mica, 1.0-2.0% carnauba wax, 1.0-2.0% ceresin,
3.0-4.6 synthetic wax, 15-25% ester, 5-15% phenyl trimethicone, and 3-7%
PVP/hexadecene copolymer.
5. The composition of claim 3 containing 1-5% fillers and 14-18% colors.
6. The composition of claim 4 wherein the ester is glycerol trioctanoate.
Description
TECHNICAL FIELD
The invention is directed to cosmetic stick compositions useful as
foundation, blush, eyeshadow, anti-perspirant, etc. The sticks contain
Polyvinyl Pyrrolidone (PVP)/Hexadecene copolymer, esters, phenyl
trimethicone, spherical silica, bismuth oxychloride, mica, and cosmetic
waxes.
BACKGROUND OF THE INVENTION
The use of cosmetic sticks to apply cosmetically active ingredients to the
skin is well known in the cosmetic art. There are generally three types of
cosmetic stick formulations: compressed powder sticks, gel sticks, and wax
sticks. Each formulation type has advantages as well as disadvantages over
the other forms. For example, compressed powder sticks are often brittle
and hard and leave a cosmetically unacceptable dust upon application.
Gels, on the other hand, offer excellent aesthetic characteristics but may
be unstable due to interaction between the soap gelling agents typically
used to solidify the sticks. Wax based sticks are often cosmetically
unacceptable because they are hard, greasy and sticky.
There is thus a need for cosmetically stable compositions which are firm
enough to resist breakage when applied to the skin, yet perform on the
skin like a smooth powder finish without feeling greasy or sticky.
SUMMARY OF THE INVENTION
The invention is directed to cosmetic stick compositions which are easily
molded into the desired shapes such as large or small crayons, yet which
apply easily to skin without breakage. The cosmetic sticks of the
invention leave a very smooth powder film on the skin and, in spite of
their wax content, do not feel greasy or heavy.
The invention is directed to a cosmetic stick composition containing a
powder phase and an oil phase said powder phase comprising 0.1-15%
spherical silica, 0.1-45% bismuth oxychloride, and 0.1-20% mica; and said
oil phase comprising 0.30% cosmetic waxes and 0.1-30% ester, 0.1-20%
phenyl trimethicone and 0.1-10% PVP/hexadecene copolymer in a 4:2:1 ratio
respectively; wherein the percentage of powder phase is 7-11% greater than
the percentage of oil phase in the final composition.
This composition provides a cosmetic stick useful as the basis for
eyeshadows, blushers, lipsticks, anti-perspirants, moisturizers,
foundations, etc. It retains a molded shape, does not easily break upon
application of pressure, and performs like a light powder on the skin.
DETAILED DESCRIPTION
The powder phase of the composition essentially contains spherical silica,
bismuth oxychloride, and mica and may optionally contain colors and other
powder-type fillers. Thus, the term "powder phase" encompasses all of the
above constituents as well as any other powder type constituents suitable
for inclusion in the composition.
The final composition contains 0.1-15% spherical silica which is considered
part of the powder phase. Spherical silica means, in accordance with this
invention, a powder of particle size from 2-20 microns which is preferably
spherical or nearly spherical in shape. Silica of this type and its
preparation are described in Japanese laid-open patent application No.
61-174103 which is hereby incorporated by reference. Spherical silica is
also available from a variety of commercial sources including Kobo
Products, Inc., Plainfield, N.J. It is known in the art to treat spherical
substances in order to effect surface modifications which enhance the
attributes of the material. The spherical silica of the invention may be
treated with a variety of materials according to methods well known to
those skilled in the art such materials being lecithin, sodium
hyaluronate, silicone, teflon, amino acids, sunscreens,
isopropyltriisostearyl titanate, polymers such as polyethylene, titanium
dioxide, or other suitable materials. For example, U.S. Pat. No. 4,622,074
describes pigments surface treated with lecithin, and U.S. Pat. No.
4,877,604 describes pigments surface treated with titanating agents. Both
patents are hereby incorporated by reference.
The final composition also contains 0.1-45% bismuth oxychloride. This
material is widely available from a variety of commercial sources. Bismuth
oxychloride is an inorganic pigment and filler which enhances the
coverage, spreadability and skin adhesion of the final composition.
The final composition contains 0.1-20% mica. This material enhances
absorbency and spreadability of the final composition and is available
from a number of commercial sources.
The oil phase of the composition contains cosmetic waxes, esters, phenyl
trimethicone, and PVP/hexadecene copolymer.
The final composition contains 0.1-30% cosmetic waxes. The waxes provide
structure and molding properties and promote skin adhesion. A wide variety
of cosmetic waxes are suitable including but not limited to carnauba,
ceresin, synthetic, candelilla, microcrystalline, beeswax, parraffin,
spermaceti, petrolatum, glyceryl tribehenate, isostearyl behenate, and so
on.
Esters comprise 0.1-30% of the final composition. The term "ester" means in
accordance with this invention, any ester formed from the reaction of a
C.sub.4-14 acid with an organic alcohol of greater than three carbons, for
example, octyl palmitate, glyceral trioctanoate, isostearyl neopentanoate,
isopropyl palmitate, 2-ethyl-hexyl palmitate, isobutyl palmitate,
isopropyl isostearate, octyl stearate, glycerol octanoate, neopentyl
glycol diisooctanoate, isostearyl palmitate, and so on.
The composition also contains 0.1-20% phenyl trimethicone also known as
phenyl dimethicone. This material is widely available from commercial
sources such as Dow Corning.
Finally the composition essentially contains 0.1-10% PVP/hexadecene
copolymer. Although the range of each ingredient may vary, it is essential
that the ratio of ester: phenyl trimethicone: PVP hexadecene copolymer is
approximately 4:2:1 respectively in the final composition. It is also
necessary that the percentage of powder phase is 7-11% greater than the
percentage of oil phase in the final composition.
As mentioned previously the composition may contain optional ingredients
which form part of the powder or oil phases so long as the ratio and
percentage of powder and oil phases remains as set forth above. For
example, in the preferred embodiment of the invention colors and other
fillers form part of the powder phase. For example, the final composition
may consist of 0.1-40% colors and 0.1-15% fillers in addition to the
aforementioned essential constituents of the powder phase. A wide variety
of colors may be used and they may be treated or untreated. It is known in
the art to treat pigments to effect surface modifications which enhance
color attributes, or add certain benefits, such as to decrease surface
tension, increase adherence, and so on. Pigments may be coated with
substances such as silicone, teflon, etc. as mentioned previously.
Suitable colors are organic or inorganic pigments which are either treated
or untreated. Inorganic pigments such as black, yellow, and red iron
oxides, amber, ultramarine, chromium oxide, ferric ferrcyanide and so on
are suitable. Suitable organic pigments are all FDA approved D&C and FD&C
colors.
The preferred embodiment of the invention also contains 0.1-15% of other
powder phase fillers such as N-lauryl-L-lysine, titanium dioxide, zinc
oxide, kaolin, magnesium oxide, magnesium carbonate, etc.
The preferred embodiment of the invention contains the following ranges of
essential constituents:
______________________________________
3-7% PVP/hexadecene copolymer
15-25% ester
5-15% phenyl trimethicone
6-10% spherical silica
14-18% bismuth oxychloride
5-10% mica
1.0-2.0% carnauba wax
1.0-2.0% ceresin
3.0-4.6% synthetic wax
______________________________________
The preferred embodiment also contains 1-5% of a filler, most preferably
N-lauryl-L-lysine and 14-18% colors. The preferred ester is glycerol
trioctanoate.
The cosmetic stick compositions of the invention are made by first blending
the dry ingredients. The blended dry ingredients are then poured into the
molten wax phase. The composition is poured into the desired molds and
allowed to cool.
The invention will be further described in connection with the following
examples which are set forth for the purposes of illustration only.
EXAMPLE 1
______________________________________
Eyeshadow Crayon %
______________________________________
Carnauba wax 1.450
Ceresin 1.450
Synthetic wax 3.800
Methylparaben 0.300
Propylparaben 0.100
BHA 0.100
PVP/hexadecene copolymer
5.100
PEG-14 diheptanoate 3.400
Glyceryl trioctanoate
26.000
Phenyl trimethicone 10.200
Red iron oxide 7.800
Yellow iron oxide 11.500
Black iron oxide 1.800
Mica 7.000
Talc 0.001
Silica 1.999
N-lauryl Lysine 2.000
Bismuth Oxychloride (BIOCL)
16.000
______________________________________
EXAMPLE 2
A free-standing make-up or concealer crayon was formulated as set forth
below:
______________________________________
%
______________________________________
Carnauba wax 1.450
Ceresin wax 1.450
Synthetic wax 3.800
Methyl paraben 0.300
Propyl paraben 0.100
BHA 0.100
PVP/hexadecene copolymer
5.100
PEG-4-diheptanoate 3.400
Glyceryl trioctanoate
26.000
Phenyl dimethicone 10.200
Red iron oxide 1.500
Yellow iron oxide 2.700
Black iron oxide 0.350
Mica 7.000
Talc 2.550
TiO.sub.2 8.000
Silica 8.000
N-lauryl Lysine 2.000
BIOCL 16.000
______________________________________
EXAMPLE 3
A free standing lipstick/blush was formulated as set forth below:
______________________________________
%
______________________________________
Carnauba wax 1.450
Ceresin wax 1.450
Synthetic wax 3.800
Methyl paraben 0.300
Propyl paraben 0.100
BHA 0.100
PVP/hexadecene copolymer
5.100
PEG-4-Diheptanoate 3.400
Glyceryl Tri-octanoate
26.000
Phenyl trimethicone 10.200
FD & C Yellow #5 0.180
D & C Red #7 0.450
Mica 7.000
Talc 14.470
Silica 8.000
N-lauryl-L-lipsine 2.000
BIOCL 16.000
______________________________________
While the invention has been described in connection with the preferred
embodiment it is not intended to limit the scope of the invention to the
particular form set forth but, on the contrary, it is intended to cover
such alternatives, modifications, and equivalents as may be included
within the spirit and scope of the appended claims.
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